Why were love songs written? Anyone got any answers?

Grizzly Affair --

Just great I get all excited over something that has to be pushed back or pushed away....it was just a fantasy...or was it? I mean I can be better... oh my gosh I'm turning into one of those people that listen to sad love songs once they find out the one they were pursuing or were going to pursue are with someone else. I mean damn, I'm listening to Neyo's "Do You" thinking about the cuddliest guy I've met in my new environment and I just find out 10 minutes ago he is in a relationship with someone whom he's in love with. Why does the shit hurt so bad? I constantly ask myself questions like this but this time it's easier to recover from it since I didn't do anything like tell him I'm diggin' his style or anything like that...oh well...I just wonder...does he ever think of me....